Sanitary mattress



Dec. 12, 1933. STAFINSKY SANITARY MATTRESS Filed March 1, 1930 IN V ENTOR.

A TTORNEY and 'of the objects and advantages thereof,-ref- Patented Dec.12, 1933 1,939, 24 sm'raar MATTRESS M Louis Stafinsky, Brooklyn, N. Y.

Application March 1, 1930. Serial No. 432.317 1 Claim. (01. 5-354) Thisinventionrelates to new: and useful improvements in a mattress.

The invention-has for an object the provision of a device of the classmentioned which is of simple durableconstruction; dependable in use ,andeflicient'inaction, and which can be manu factured and sold at areasonable cost.

The invention proposes an upper and lower frame, 'meansior resilientlysupporting said frames in spaced positions, upper and lower 1 sheetsstretched tightly oversald upper and lower'frame's, upper and lowercushions adjacent the outer sides ';of said sheets, and upper and lowercasing members covering said cushions and attached to each other alongadjacent edges.

The invention also proposes a means for. changing'the resiliency of themeans for supporting the frames 'in spaced positions so as to change thecushioning effect of the mattress.

For further comprehension of the invention,

erence will be 'had to the following description and accompanyingdrawing, and to the appended claim in which the various novel featuresof the invention are more particularly set forth.

In the accompanying drawing forming a m'a-.

' terial part of disclosure:

Fig. 1 is'a perspective view of a mattress constructed'accordingto thisinvention.

Fig. '2 is a fragmentary enlarged transverse sectional view taken ontheline 2-2 ofFig. 1.

v Fig. 3 is a fragmentary enlarged horizontal sectional view of onecorner of the mattress taken on the line5 3[' 3' of Fig. 1.

Fig. 4 is a fragmentary perspective view of one of the sides of themattress.

Fig. 5 is a fragmentary enlarged detailed sectional viewtaken on theline 5-5 of Fig. 4.

Fig. 6 is a fragmentary horizontal sectional view taken. on the line 66of Fig. 1.

Fig. 7 is a fragmentary horizontal sectional view taken on the line 77of Fig. 2.

Fig. 8 is a fragmentary elevational view looking in the direction of theline 8-8 of Fig. 3.

"these frames in spaced positions, upper and lower sheets 12 stretchedtightly over said upper and lower frames, upper and lower cushions 13adjacent the outer sides of said sheets 12, and upper and lower casings14 covering said cushions 13 and attached to each other along adjacentedges.

The frames 10 and 11 consist of side forming rods connected with eachother so as to produce a rectangular structure when viewed from the topand joined at the corners with curved portions.

.Themeans forresiliently supporting said frames in spaced positions isshown to consist of a plurality of spiral helical springs 15 formed withlarge ends 16 and with small central turns 17. 05 The springs 15adjacent the side forming arms of the frames are stationarily held bystrings l8 wound around the rods and around the end turns of thesprings.

The other springs 15 not adjacent the side forming members of the framesare attached to each other by a. plurality of springs 19. The variousparts should be firmly secured to each other so as to form a resilientmass. Great care should be taken that the strings 18 be very tight andthat the springs 19 join all the other springs to the outer springs in avery firm manner so that the resilient structure does not act againstthe sheets 12 spread over the frames.

. This is clearly illustrated in Fig. 2 in which the ends of the springsare shown slightly spaced from the sheets. The sheets 12 are extendedcompletely across the frames and the edges of the sheets are turnedaround the side forming. members of the frames. A plurality of hooks 22are attached along these edges and engageupon turns of the springs 15for maintaining the stretched positions of the sheets. The springs alsoadd resiliency to the stretched sheets in addition to their function ofholding them in place. The cushions 13 may be of any type, butpreferably should be of the type having an outer case ing and softfilling material. The upper and lower casing members 14 serve to holdthe cushions 13 in place.

Each of the casing members 14 consists of a transverse portion 23connected with inturned ends 24 terminating between the upper and lowercushions. The edges of these ends are indicated in Fig. 5 by referencenumeral 25. The casing 100 material is bent outward along these edges 25so as to form strip portions 26 which terminate in outer bends 27connected with inwardly directed strip portions 28. These strip portionsoverlap one another as at 29 and are held together by snap fasteners 30or the like.

A plurality of books 31 spaced at regular distances from each other areattached upon the outwardly directed strip portions 26 of one of thecasings 14 and are engageable with eye elements 113 32 attached upon theoutward directed strip portions of the other casing. These hooks arepivotally arranged so that they may swing into and out of engagementwith the eye elements 32. A plurality of short length rods 32' areclosely spaced to each other and are sewed into the bends 25. Since theyare short and spaced they do not prevent folding of the casing member 14for cleaning the same. The rods 32' are held from side slipping bystitches 38.

These rods do not detract from the flexibility of the mattress and atthe same time add strength to the portions where stresses areencountered. Particular reference is had to the portions at which thehooks 31 engage the eyelets 32. If the strains were not distributedalong lengths at these points, soon the casings would be completely outof shape in that strains occur only at periodic points. In Fig. 6 adetail has been shown for one of the corners of the mattress toparticularly point out that the short length rods 32' may be bent tomaintain the bends of the corners. A space 33 is shown between the rodsillustrated in this figure.

A plurality of handles 34 are attached upon the ends of the mattress soas to provide for convenient handling. These handles may be attachedupon the casings 14. The corners of the cushions are reinforced withdiagonal strips 35. These strips are attached at their ends 36 upon theinner portions of the casing members 14 and are adapted to extend overthe corners of the frames and 11. The main function of these strips areto hold the cushion against slippage so that the corners of the cushionmaintain their position against the corners of the frames.

The casing members are also formed with cutout portions 45 on oppositesides, closure members 46 normally close these openings. They areattached in place with snap fasteners arranged along the edges andengageable with complementary elements arranged around the openings. Theinterior of the mattress may be inspected thru the openings 45.

In the modified form of the device illustrated in Figs. 9 and 10, ameans has been shown for changing the resiliency of the supporting meansof the frames. This means consists in hook sections 39 forming eachofthe hooks 39 and at adjacent ends being formed with opposite handthreads. Couplers 40 threadedly engage upon these adjacent ends so thatwhen turned in one direction to draw the hook sections together and whenturned in the opposite directions to seperate them. The inner ends 41 ofthe hook sections are formed with enlarged portions engaging in recesses42 in the couplers 40 so as to prevent complete displacement of the hooksections from the coupler. The tension of the springs 15 may be acvaried by changing the distances between the bends 25. If thesedistances are changed, different compressions will be had in that theframes 10 and 11 will be at different spaced positions. This distancemay be controlled by adjustments of the length of the hooks 39.

In operation of the mattress, it is used in a conventional fashion. Forcleaning or for repair. it is merely necessary to open the snapfasteners 30. This allows the strip portions 28 to be raised so thataccess may be had to the hooks 31. The hooks may then be disengaged fromthe eyelets and the casing members 14 removed. The cushions may next beaired. repaired or changed for cushions of difierent qualities. Ifdesired, the hook elements 22 may be disengaged from the springs 15 forremoving the sheets 12. This permits the sheets to be washed. Themattress may be assembled in a very short period of time so that its useis practical.

While I have shown and described the preferred embodiment of myinvention, it is to be understood that I do not limit myself to theprecise construction herein disclosed and the right is reserved to allchanges and modifications coming within the scope of the invention asdefined in the appended claim.

Having thus described my invention, what I claim as new, and desire tosecure by United States Letters Patent is:-

A cover for a spring mattress comprising an upper and a lower sheet forcovering the top and bottom of the mattress, an upper side piece securedto and depending from the edges of said upper sheet, a lower side piecesecured to and extending upward from the edges of said lower sheet, saidside pieces extending over and covering the sides of the mattress, andmeans for detachably securing the upper side piece to the lower sidepiece, said securing means comprising a portion of each side piecefolded outwardly from the 115 mattress and away from the opposite sidepiece,

a plurality of stiffening rods disposed within the fold and extendingalong the length of the fold at slightly spaced intervals, stitchessecuring said folded portion to said side piece along a line re- 120mote from the folded edgeto hold said portion in its folded condition,fastening elements secured to the folded edge and the stiffening rods ofone side piece, cooperating fastening elements secured to the foldededge and the stiffening rods of the 125 other side piece for detachablyfastening the folded edge of one side piece to the folded edge of theother side piece, a covering flap portion on each side piece extendingfrom said line of stitches and reversely folded to cover said foldededge, 13) fastening elements and first folded portion, and means fordetachably securing each cover flap to the opposite cover flap.

LOUIS STAFINSKY.

